<bdo id="2fwpw"></bdo><noframes id="2fwpw"><delect id="2fwpw"></delect><delect id="2fwpw"></delect><noframes id="2fwpw"><rt id="2fwpw"></rt><bdo id="2fwpw"></bdo><delect id="2fwpw"></delect><delect id="2fwpw"><bdo id="2fwpw"></bdo></delect><noframes id="2fwpw"><noframes id="2fwpw"><delect id="2fwpw"><delect id="2fwpw"></delect></delect><rt id="2fwpw"></rt><delect id="2fwpw"></delect><delect id="2fwpw"></delect><bdo id="2fwpw"></bdo><bdo id="2fwpw"></bdo> <bdo id="2fwpw"><rt id="2fwpw"></rt></bdo><noframes id="2fwpw"><bdo id="2fwpw"></bdo><bdo id="2fwpw"></bdo><delect id="2fwpw"><rt id="2fwpw"></rt></delect><rt id="2fwpw"><rt id="2fwpw"></rt></rt><bdo id="2fwpw"><bdo id="2fwpw"></bdo></bdo><rt id="2fwpw"></rt><delect id="2fwpw"></delect><noframes id="2fwpw"><rt id="2fwpw"></rt><rt id="2fwpw"></rt><rt id="2fwpw"></rt><rt id="2fwpw"></rt><delect id="2fwpw"><noframes id="2fwpw"><noframes id="2fwpw"> <delect id="2fwpw"></delect><delect id="2fwpw"></delect><noframes id="2fwpw"><delect id="2fwpw"></delect><bdo id="2fwpw"></bdo><noframes id="2fwpw"><noframes id="2fwpw">
scw威偉
互幫互助，共建美好社會(huì )。給他人方便就等于方便了自己。
級別: 家園�？�
精華主題: 0
發(fā)帖數量: 506 個(gè)
工控威望: 812 點(diǎn)
下載積分: 8059 分
在線(xiàn)時(shí)間: 174(小時(shí))
注冊時(shí)間: 2011-06-02
最后登錄: 2022-02-12
查看scw威偉的 主題 / 回貼
樓主  發(fā)表于: 2011-07-05 22:49
我用接觸器接220V電熱管Y型接法，ABC每一相上接4根管子，如果A相上壞了2根管子，或A相4根全壞了，會(huì )出現什么情況呢，會(huì )不會(huì )因為三相不平衡而產(chǎn)生電氣火災��？？？
困難像彈簧，你強它就弱，你弱它就強！
shi2999
不管學(xué)什么，興趣是最好的老師，能賺錢(qián)是最強勁的動(dòng)力
級別: 網(wǎng)絡(luò )英雄

精華主題: 0
發(fā)帖數量: 2680 個(gè)
工控威望: 7394 點(diǎn)
下載積分: 3002 分
在線(xiàn)時(shí)間: 606(小時(shí))
注冊時(shí)間: 2010-12-26
最后登錄: 2023-05-29
查看shi2999的 主題 / 回貼
1樓  發(fā)表于: 2011-07-05 23:41
星形點(diǎn)應該接零，而不是接地。最好盡量三相負載大少平恒。

国产精品碰碰现在自|超碰香蕉人人网99精品|人妻无码一区二区19p|久久久噜噜噜久久中文字幕|亚洲va中文字幕无码
<bdo id="2fwpw"></bdo><noframes id="2fwpw"><delect id="2fwpw"></delect><delect id="2fwpw"></delect><noframes id="2fwpw"><rt id="2fwpw"></rt><bdo id="2fwpw"></bdo><delect id="2fwpw"></delect><delect id="2fwpw"><bdo id="2fwpw"></bdo></delect><noframes id="2fwpw"><noframes id="2fwpw"><delect id="2fwpw"><delect id="2fwpw"></delect></delect><rt id="2fwpw"></rt><delect id="2fwpw"></delect><delect id="2fwpw"></delect><bdo id="2fwpw"></bdo><bdo id="2fwpw"></bdo> <bdo id="2fwpw"><rt id="2fwpw"></rt></bdo><noframes id="2fwpw"><bdo id="2fwpw"></bdo><bdo id="2fwpw"></bdo><delect id="2fwpw"><rt id="2fwpw"></rt></delect><rt id="2fwpw"><rt id="2fwpw"></rt></rt><bdo id="2fwpw"><bdo id="2fwpw"></bdo></bdo><rt id="2fwpw"></rt><delect id="2fwpw"></delect><noframes id="2fwpw"><rt id="2fwpw"></rt><rt id="2fwpw"></rt><rt id="2fwpw"></rt><rt id="2fwpw"></rt><delect id="2fwpw"><noframes id="2fwpw"><noframes id="2fwpw"> <delect id="2fwpw"></delect><delect id="2fwpw"></delect><noframes id="2fwpw"><delect id="2fwpw"></delect><bdo id="2fwpw"></bdo><noframes id="2fwpw"><noframes id="2fwpw">